Support-studies for the coronagraph contamination experiment, 1 September 1968 - 31 August 1969
Calculation of Mie scattering functions
Kovar, N. S.↗
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Results for “Contamination”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Microbial contamination in spacecraft water system Final report
Decontaminating potable water supply in Apollo spacecraft using bacteria removal filters
Source record↗
Atmospheric Contamination Control
Trace gas control method for decontamination of integrated life support system
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Study of the application of a photoionization mass spectrometer to analysis of contaminant gases, June 1966 - November 1969
Trace gas analysis using photoionization mass spectrometer
Driscoll, J. N.↗
An analytical basis for assaying buried biological contamination Interim report
Analysis of procedure for bioassay of viable organisms buried or embedded in spacecraft materials
Kline, R. C.↗
An approach to contamination identification
Regression analysis technique for complex gaseous mixture waveforms in mass spectral analysis
Edwards, T. R.↗
Planetary quarantine and back contamination
Cleaning and decontamination processes for space hardware
Source record↗
A system for removing contaminants from spacecraft optical systems
Spacecraft window cleaning with methyl alcohol and low pressure nitrogen providing filming control for Apollo optical experiments
Gibson, W. C.↗
Corrosion of oxygen contaminated tantalum in NaK
Ta oxygen concentration effects on corrosion resistance to NaK in SNAP 8 boilers
Harrison, R. W.↗
Modifications to a vacuum assisted filtering device to minimize contamination
High purity filter unit saves time and expense in laboratory operations and improves purity of liquids processed. Any but most viscous liquids are processed by modified unit equipped with appropriate filter medium. Unit's use eliminates much glassware cleaning tedium.
Gaudiano, S.↗
Contamination of spacecraft surfaces downstream of a Kaufman thruster
Effects of mercury electron bombardment ion thruster exhaust products on surfaces located downstream
Reynolds, T. W.↗
Collection and measurement of atmospheric trace contaminants Final report
Mass and infrared spectrometric and gas chromatographic analysis of air samples from space station simulator during 90 day manned test
Deuel, C. L.↗
Analysis of a two-dimensional mass transport problem in contamination of space flight experiments
Analytical and numerical evaluation of boxed two dimensional mass transport problem with sinks and sources for application in spacecraft contamiation effects on radiation measurement
Klingman, E.↗
Apollo contamination analysis, part 1 Final report
Data processing and reduction techniques for photointerpretation of Baker-Nunn photographs of venting clouds during Apollo 12 flight
Source record↗
Performance of a new vacuum package to reduce tritium contamination for a 150 kilovolt neutron generator
Vacuum packaged titanium bulk sublimator/ion pump combination for reducing tritium hazard in neutron accelerator
Alger, D. L.↗
Performance of a new vacuum package to reduce tritium contamination for a 150 kilovolt neutron generator
Vacuum package with Ti bulk sublimator/ion pump combination for 150 kv neutron generator tritium decontamination
Alger, D. L.↗
Phase-lock demodulation of a PM signal contaminated with incidental AM
Signals from phase-modulated satellite transmitters usually exhibit some degree of incidental amplitude modulation. The effects of incidental AM are analyzed when this type of signal is demodulated by a phase-lock receiver which does not employ a limiter preceding the loop phase detector. The presence of incidental AM causes a reduction in the receiver output signal-to-noise ratio. The tolerable level of AM decreases in proportion to the phase modulation index Beta. For a square-wave modulating signal, a 1 db reduction results at the receiver PM channel output when Beta = 1 radian and the percentage of AM = 23, Beta = 1.2 radians and the percentage of AM = 16, or Beta = 1.5 radians and the percentage of AM = 4. Although only the PM channel of the receiver is used ordinarily, utilizing both the AM and PM channel by summing offers an improvement in S/N relative to the S/N ratio of the PM channel if the percentage of incidental AM is greater than fifteen.
Robinson, G. B.↗
Contamination control through filtration of microorganisms
A description is given of the various kinds of gas and liquid filters used in decontamination and sterilization procedures. Also discussed are filtration mechanisms, characteristics of filter materials, and the factors affecting filter performance. Summaries are included for filter testing and evaluation techniques and the possible application of the filters to spacecraft sterilization.
Stabekis, P. D.↗